CN201166560Y - Camshaft position sensor - Google Patents
Camshaft position sensor Download PDFInfo
- Publication number
- CN201166560Y CN201166560Y CNU2008200657761U CN200820065776U CN201166560Y CN 201166560 Y CN201166560 Y CN 201166560Y CN U2008200657761 U CNU2008200657761 U CN U2008200657761U CN 200820065776 U CN200820065776 U CN 200820065776U CN 201166560 Y CN201166560 Y CN 201166560Y
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- sensor
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- magnet ring
- iron core
- position sensor
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- Expired - Fee Related
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Abstract
The utility model relates to a camshaft position sensor, which comprises that a magnetizer iron core (1) is arranged in the middle of a permanent magnetic body magnet ring (3), a single-piece Hall component (2) is installed on the iron core (1) and the permanent magnetic body magnet ring (3) and is fixed on a sensing core (5) of an architecture mode with a circuit board together, the sensing core (5) is installed in an outer shell (4) according to the regulated direction and then is manufactured to form a whole through injection moulding. The utility model has the advantages that in the aspect of design, an opened magnetic circuit design is adopted to guarantee that the sensor is arranged in a regulated installing gap and can work normally without adjusting the functional gap, the sensor has high sensibility and accurate phase, and can obtain phase reading numbers with the precision within +-2degrees, in the aspect of structure design, the sensing core adopts an architecture fixing mode and can bear the impact of subsequent injection moulding manufacture to increase the qualified rate of product production and manufacture and to realize the localization of electronic injection sensors.
Description
Technical field
The utility model relates to the electronic fuel injection engine sensor technical field, a kind of specifically CMPS Camshaft Position Sensor.
Background technology
CMPS Camshaft Position Sensor is that the most frequently used automobile of electronic fuel injection engine is used one of sensor (hereinafter to be referred as sensor), and it is that a kind of signal output voltage is the position transducer of square wave.At present, the same type of sensor of domestic production exists (being the relative distance between sensor senses end face and the target wheel) transducing signal disappearance and distortion and the overproof problem of phase accuracy in envelop of function, has restricted the development of EFI sensor production.Magnetic Circuit Design with other same type of sensor is compared, and has highly sensitive, the accurate characteristics of phase place.
The utility model content
The purpose of this utility model is a kind of usability of guaranteeing product sensor of design, improves the production technology level of this product, realizes the CMPS Camshaft Position Sensor of the production domesticization of EFI product sensor.
The utility model adopts unique open-type magnetic Circuit Design, is different from the existing magnetic Circuit Design of domestic like product.Its ultimate principle is: a monolithic Hall element is mounted on one opens the magnetic circuit centre, this moment, magnetic line of force direction was parallel to the sensitive face no signal output of Hall element.When target wheel tooth top (magnetic conductor) process sensor plane, make the magnetic line of force that the component perpendicular to sensitive face be arranged, produce pulse output, output one square-wave voltage sends ECU to after amplifying shaping, as control signal.
The utility model CMPS Camshaft Position Sensor, comprise: magnetic conductor iron core 1 places in the middle of the permanent magnet magnet ring 3, single-piece Hall element 2 is installed on iron core 1 and the permanent magnet magnet ring 3, be fixed on together with wiring board on the sensing core 5 of framework mode, with sensing core 5 in accordance with regulations direction pack among the shell 4, be processed to form an integral body by injection moulding again.
The advantage of the utility model CMPS Camshaft Position Sensor is: at design aspect, adopt the open-type magnetic Circuit Design, to guarantee that sensor is in the assemblage gap of regulation, not needing to adjust the function gap can operate as normal, has high sensitivity, phase place is accurate, can obtain the phase place reading of precision in ± 2 °; In the structural design direction, the sensing core adopts the framework fixed form, can bear the impact that follow-up injection moulding adds man-hour, to improve the qualification rate of production processing, to realize the production domesticization of EFI sensor.
Description of drawings
Fig. 1 is the structural representation of CMPS Camshaft Position Sensor.
Fig. 2 a, b are the magnetic Circuit Design synoptic diagram.
Embodiment
According to Fig. 1, shown in Figure 2, a kind of CMPS Camshaft Position Sensor, comprise: magnetic conductor iron core 1 places in the middle of the permanent magnet magnet ring 3, single-piece Hall element 2 is installed on iron core 1 and the permanent magnet magnet ring 3, be fixed on together with wiring board on the sensing core 5 of framework mode, with sensing core 5 in accordance with regulations direction pack among the shell 4, be processed to form an integral body by injection moulding again.
Claims (1)
1, a kind of CMPS Camshaft Position Sensor, it is characterized in that: magnetic conductor iron core (1) places in the middle of the permanent magnet magnet ring (3), single-piece Hall element (2) is installed on iron core (1) and the permanent magnet magnet ring (3), be fixed on together with wiring board on the sensing core (5) of framework mode, with sensing core (5) in accordance with regulations direction pack among the shell (4), be processed to form an integral body by injection moulding again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200657761U CN201166560Y (en) | 2008-02-29 | 2008-02-29 | Camshaft position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200657761U CN201166560Y (en) | 2008-02-29 | 2008-02-29 | Camshaft position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201166560Y true CN201166560Y (en) | 2008-12-17 |
Family
ID=40191950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200657761U Expired - Fee Related CN201166560Y (en) | 2008-02-29 | 2008-02-29 | Camshaft position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201166560Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241479A (en) * | 2015-10-14 | 2016-01-13 | 成都汉兴科技有限公司 | Camshaft position sensor |
| CN108061561A (en) * | 2016-11-09 | 2018-05-22 | 大陆汽车电子（连云港）有限公司 | CMPS Camshaft Position Sensor and vehicle |
| WO2018133446A1 (en) * | 2017-01-18 | 2018-07-26 | 江苏易实精密科技股份有限公司 | Insert for use with position sensor of vehicle engine |
| CN109489533A (en) * | 2017-09-12 | 2019-03-19 | 驭芯科技（上海）有限公司 | Contactless Magnetic Sensor, automobile gearbox neutral position switch |
-
2008
- 2008-02-29 CN CNU2008200657761U patent/CN201166560Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241479A (en) * | 2015-10-14 | 2016-01-13 | 成都汉兴科技有限公司 | Camshaft position sensor |
| CN108061561A (en) * | 2016-11-09 | 2018-05-22 | 大陆汽车电子（连云港）有限公司 | CMPS Camshaft Position Sensor and vehicle |
| WO2018133446A1 (en) * | 2017-01-18 | 2018-07-26 | 江苏易实精密科技股份有限公司 | Insert for use with position sensor of vehicle engine |
| CN109489533A (en) * | 2017-09-12 | 2019-03-19 | 驭芯科技（上海）有限公司 | Contactless Magnetic Sensor, automobile gearbox neutral position switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20150229 |
|
| EXPY | Termination of patent right or utility model |